Home / 11,153.54-15,383.82-9,472.29

Finding the Fourth Proportional to 11,153.54, 15,383.82 and 9,472.29

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Solution

The fourth proportional to 11,153.54, 15,383.82 and 9,472.29 is: 13,064.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,153.54 : 15,383.82 = 9,472.29 : x
  2. Step 2: Convert to fraction form
    11,153.54/15,383.82 = 9,472.29/x
  3. Step 3: Cross multiply
    11,153.54x = 15,383.82 × 9,472.29
  4. Step 4: Simplify right side
    11,153.54x = 145,719,982.18
  5. Step 5: Solve for x
    x = 145,719,982.18/11,153.54
  6. Step 6: Final answer
    x = 13,064.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.